AKA Call Mr. D., Richard Diamond is an ex-New York City policeman who quit the force to become a private detective. His friend, Lieutenant McGough, was also good for information on the case he was working on. In February 1959, Diamond moved to Hollywood and found a girlfriend, Karen Wells. He also acquired an answering service where "Sam" took his messages. This description was obtained from IMDb. This episode has our slick, cigarette smoking gumshoe, solving crimes at the rodeo.